Platanthera purpurascens (Rydb.) Sheviak & W.F.Jenn.
Purple Petal Bog Orchid
Facts About
Accepted Synonyms: Habenaria purpurascens, Limnorchis purpurascens, Platanthera hyperborea var. purpurascens
Platanthera purpurascens, the Purple Petal Bog Orchid, is concentrated in the Rocky Mountains of Colorado and New Mexico, with populations in adjacent states. The common name refers to the purple or reddish highlights often seen on the deep green flowers whose strong, musty smell distinguishes this orchid from the spicy aroma of P. dilatata. The blunt leaves diverge widely from the stem and are a reliable character that aids in identification. This orchid grows in wet areas and shows a wide tolerance of habitats, including seeps, meadows and stream banks.
The conservation status for Platanthera purpurascens has not been reported, but this orchid is widely distributed and grows in diverse habitats.
Ecosystem Type
Disturbed habitats, fens, seeps, shrublands or thickets, stream bank
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
-
- alternate
- stem
- Number of leaves on stem:
-
- three
- four
- five
- six
- Form of the labellum:
- the labellum is not pouch-like
- Labellum outline:
- the labellum is simple
- Main color of labellum:
- green to brown
- Nectar spur:
- present
- Labellum characteristics:
-
- the labellum has a spur
- the labellum is simple
- Labellum length:
- 4–8 mm
- Sepal length:
- 4–5 mm
- Plant height:
- 24–80 cm
-
Flowers
- Floral bract length:
- Up to 20 mm
- Flower petal color:
- green
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- July
- August
- September
- Flowers per inflorescence:
- Up to 150
- Form of the labellum:
- the labellum is not pouch-like
- Labellum characteristics:
-
- the labellum has a spur
- the labellum is simple
- Labellum length:
- 4–8 mm
- Labellum outline:
- the labellum is simple
- Labellum position:
- the flowers are resupinate
- Lower petal strongly red-veined:
- no
- Main color of labellum:
- green to brown
- Nectar spur:
- present
- Nectar spur length:
- 2–3 mm
- Number of stamens:
- 1
- Orientation of side petals:
- the lateral petals are erect
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepal length:
- 4–5 mm
- Sepals fused only to sepals:
- the sepals are separate from one another
- Shape of viscidium:
-
- oval
- roughly circular
- Spots on labellum:
- no
-
Fruits or seeds
- Seed capsule orientation:
- the capsule points upwards or outwards
-
Growth form
- Plant height:
- 24–80 cm
- Roots:
- the rhizomes are non-coralloid
- Underground organs:
-
- slender roots
- this plant has a rhizome
- myco-heterotrophic or not:
- the plant is chlorophyllous
-
Leaves
- Leaf arrangement:
-
- alternate
- stem
- Leaf blade edges:
- the leaf edges are entire
- Leaf blade length:
- 30–150 mm
- Leaf blade shape:
-
- lanceolate
- ovate
- Leaf blade width:
- 10–30 mm
- Leaves during flowering:
- leaves are present during flowering
- Number of leaves on stem:
-
- three
- four
- five
- six
-
Place
- Ecosystem type:
-
- disturbed habitats
- fens
- seeps
- shrublands or thickets
- stream banks
- Habitat:
- terrestrial
- Location:
-
- Arizona
- California
- Colorado
- New Mexico
- Wyoming
-
Facts and Uses
- Mycorrhiza
- Monitoring
- Propagation
- Restoration
Native to North America
Yes
North American Conservation Status & Distribution
Conservation Status
Conservation and Wetland Status | |
---|---|
Global Rank | N/A |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Arizona | |
---|---|
Global Rank | N/A |
US Status | N/A |
Arizona Rank | State Rare |
Arizona Status | N/A |
Canadian Status | N/A |
Wetland Status | Obligate Wetland |
Conservation status for: California | |
---|---|
Global Rank | N/A |
US Status | N/A |
California Rank | N/A |
California Status | N/A |
Canadian Status | N/A |
Wetland Status | Obligate Wetland |
Conservation status for: Colorado | |
---|---|
Global Rank | N/A |
US Status | N/A |
Colorado Rank | N/A |
Colorado Status | N/A |
Canadian Status | N/A |
Wetland Status | Obligate Wetland |
Conservation status for: New Mexico | |
---|---|
Global Rank | N/A |
US Status | N/A |
New Mexico Rank | N/A |
New Mexico Status | N/A |
Canadian Status | N/A |
Wetland Status | Obligate Wetland |
Conservation status for: Wyoming | |
---|---|
Global Rank | N/A |
US Status | N/A |
Wyoming Rank | N/A |
Wyoming Status | N/A |
Canadian Status | N/A |
Wetland Status | Obligate Wetland |